<template>
  <div id="app">
    <!-- 顶部 -->
    <header class="mui-bar mui-bar-nav">
      <sapn class="mui-icon mui-icon-left-nav mui-pull-left" @click="goBack" v-show="flag">返回</sapn>
      <p class="mui-title">真香</p>
    </header>
    <!-- 中部 -->
    <transition name="my">
      <router-view></router-view>
    </transition>

    <!-- 底部 -->
    <nav class="mui-bar mui-bar-tab">
      <router-link class="mui-tab-itemv" to="/home">
        <span class="mui-icon mui-icon-home"></span>
        <span class="mui-tab-label">首页</span>
      </router-link>
      <router-link class="mui-tab-itemv" to="/member">
        <span class="mui-icon mui-icon-contact"></span>
        <span class="mui-tab-label">消息</span>
      </router-link>
      <router-link class="mui-tab-itemv" to="/shoppingcart">
        <span class="mui-icon mui-icon-extra mui-icon-extra-cart">
          <span class="mui-badge" id="mybadge">{{this.$store.getters.getAllCount}}</span>
        </span>
        <span class="mui-tab-label">购物车</span>
      </router-link>
      <router-link class="mui-tab-itemv" to="/search">
        <span class="mui-icon mui-icon-search"></span>
        <span class="mui-tab-label">搜索</span>
      </router-link>
    </nav>
  </div>
</template>

<script>
export default {
  data(){
    return {
      flag:false
    };
  },
  methods: {
    goBack(){
      console.log('aa')
      this.$router.go(-1)
    }
  },
 watch: {
   '$route.path':function(newVal){
     if(newVal==='/home'){
       this.flag=false
     }else{
       this.flag=true
     }
   }
 },
 created () {
   this.flag=this.$route.path=='/home'?false:true
 }
}
</script>

<style lang="scss">
#app {
  padding-top: 44px;
  padding-bottom: 50px;
  overflow-x: hidden;
}
.mui-bar {
  background-color: blue;
  height: 40px;
}
.my-enter {
  opacity: 0;
  transform: translateX(100%);
}
.my-leave-to {
  opacity: 0;
  transform: translateX(-100%);
  position: absolute;
}
.my-enter-active,
.my-leave-active {
  transition: all 0.5s;
}
.mui-bar-tab .mui-tab-itemv.mui-active {
  color: #007aff;
}

.mui-bar-tab .mui-tab-itemv {
  display: table-cell;
  overflow: hidden;
  width: 1%;
  height: 50px;
  text-align: center;
  vertical-align: middle;
  white-space: nowrap;
  text-overflow: ellipsis;
  color: #929292;
}
.mui-bar-tab .mui-tab-itemv .mui-icon {
  top: 3px;
  width: 24px;
  height: 24px;
  padding-top: 0;
  padding-bottom: 0;
}
.mui-bar-tab .mui-tab-itemv .mui-icon ~ .mui-tab-label {
  font-size: 11px;
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
}
.mui-bar-nav.mui-bar .mui-icon{
  color: rgb(58, 37, 179);
  font-size: 18px;
  display: inline-block;
  line-height: 27px;
}
</style>
